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Finding the Fourth Proportional to 543,698.59, 815,547.89 and 169,753.63

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Solution

The fourth proportional to 543,698.59, 815,547.89 and 169,753.63 is: 254,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,698.59 : 815,547.89 = 169,753.63 : x
  2. Step 2: Convert to fraction form
    543,698.59/815,547.89 = 169,753.63/x
  3. Step 3: Cross multiply
    543,698.59x = 815,547.89 × 169,753.63
  4. Step 4: Simplify right side
    543,698.59x = 138,442,214,766.34
  5. Step 5: Solve for x
    x = 138,442,214,766.34/543,698.59
  6. Step 6: Final answer
    x = 254,630.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.